Full list of all 33 The Typing of The Dead: Overkill achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Decapitate 200 mutants in Typing of the Dead
Complete 'Naked Terror' in Typing of the Dead
Achieve a Goregasm in Typing of the Dead
Complete 'Papa's Palace of Pain' in Typing of the Dead
Type a thirty character phrase without any errors
Complete 'Ballistic Trauma' in Typing of the Dead
Complete 'Carny' in Typing of the Dead
Complete 'Creeping Flesh' in Typing of the Dead
Complete 'Scream Train' in Typing of the Dead
Complete 'The Fetid Waters' in Typing of the Dead
Complete 'Jailhouse Judgement' in Typing of the Dead
Complete all levels in Typing of the Dead
Maintain a Goregasm for two minutes in Typing of the Dead
Play all mini games in Typing of the Dead
Kill 100 Fat mutants in Typing of the Dead
Kill 30 Rage mutants in Typing of the Dead
Complete any Hardcore level in Typing of the Dead
Complete all Hardcore levels in Typing of the Dead
Complete a level without taking any damage in Typing of the Dead
Complete a Hard level without taking damage in Typing of the Dead
Complete a Hardcore level without taking damage in Typing of the Dead
Complete 'Papa's Palace of Pain' in House of the Dead
Complete 'Naked Terror' in House of the Dead
Complete 'Ballistic Trauma' in House of the Dead
Complete 'Carny' in House of the Dead
Complete 'Creeping Flesh' in House of the Dead
Complete 'Scream Train' in House of the Dead
Complete 'The Fetid Waters' in House of the Dead
Complete 'Jailhouse Judgement' in House of the Dead
Complete all levels in House of the Dead
Complete all Director's Cut levels in House of the Dead
Complete all challenges in all Director's Cut levels in House of the Dead
Kill five or more mutants with one grenade